How will consumers of my FIT data know what timezone my times are in?
How will consumers of my FIT data know what timezone my times are in?
Timestamp fields are deliberately defined as UTC time so that they may be conveniently displayed in the local time if so desired. In some instances it is useful to know the UTC offset when the file was generated (possibly different from when it is decoded). This can be accomplished by logging a single message containing both a local_timestamp and a timestamp field. This will establish the UTC offset of the file. Presently these fields are predefined for activity and monitoring messages.
